Improvement in bos-scraper



'l'olallwhom'it may concern.- i y l y, Be it known that I, JOSEPH R.'BAILEY, of Wooni liitttrtl tang aient @titille JOSEPHRBAILEY, orWooNsocKnr, RHoDEIsLAND, Assieme To HIM- sELrj-,AND sELDEN A. BAILEY, orSAME PLAGE."

Y Letters Patent No.1r'105,

7 66, dated -J'uly 26,'1870.

The Schedule referred to in these'Letters Patent and making part of thesame'.

'socket, 1in thecounty of'-Providence, and in the State :of RhodeIsland, have invented a new and uset'nl Improvement in Scrapers; and Ido herebydeclare that the following is a `full, i clear, and exactdescription thereof, reference being had to the annexed drawdfinginaking part otjthis specification, in` whicht Figure -1 islalperspective view of the scraper. Figure? isa longitudinalsectionthereof.` l Figure 3 shows a scraper with the cap left oli".V lThe same letters are used in all the h'gures to indicate identicalparts.` l r This invention relates tothat class of devices usuallytermed box pr barrehscrapers; and

My improvement consists in the application of an eccentric or curved rodfor holding the bit in position; rand, also, incolnhining with the bitand eccentric rod Ia' cap or-iron plate to be inserted between the two,for the purpose ot* holding the'bit more rmly, as well as to preventslipping of the same in turning the rod down tosecure it, astwill bemore fully set lforth in thethllowing description and'claim:

'Ifo lenable those skilled in the art to make `and use ,my inrention, Iwillproceed to kdescribe its-construction and operation.

In the annexeddrawingel 1 A represents the stock, terminating at one endin the shank a. to enter the wooden handle A, in which l it is securedinthe usnal manner.

l The other; end of the stock is to be shaped substantially as shown,forming a `frame, A2, for the reshavingspass. l

through whichtheedge ot' the bit projects and the B is the bit, such asis now commonly used in planes. The hit is secured in the frame by meansof the rod C, which has its bearings in the sides of theframe,

By reference to VVfig. 1, it will be observed that the' portionot' therod within the frame A2 is slightly curved, so that, when its' handle isturned up to the position shown there, it will press upon the bit, orits cap, for the purpose of forcing such bit firmly against l theend'a/ot' the flame, and thus hold it in position;

said end a heilig made slightly concave upon its inner surface.

To hohl .the bitmore firmly than can be done by. the curved or eccentricrod alone, as well as to preveut slipping ot' the bit in secnling it byturning the rod, I provide a cap, D, a metallic plate to be insertedbetween the bit and rod, its lower edge being beveled, as shown.Although this cap is not an essential part of the scraper, I prefer inmost cases to use it, for the reasons stated.

'lhe principal advantage which this scraper possesses over others of thesame type, consists in the fact that the hit, being not slotted, can beused up until it bei comes too short to be secured.

t VV'hat I claim as my invention, and desire to'sel cure by LettersPatent, ,is-

'lhe box-scraper, consisting of the frame A2 with a shank or handle,knife B, and curvedor eccentric rod vC for holding the latter inposition, either with or l without the cap D, substantially asdescribed. 4

'Ihe abovespecifcation signed by this dayof JOSEPH R. BAILEY.

Witnesses:

WALTER DUNKERLY, CHARLES F. PAGE.

